There are several methods for evaluating employee performance: self-evaluation allows employees to explore their own strengths and weaknesses but can contain bias; supervisor evaluations tend to contain more criticism but can be influenced by outside factors; peer evaluations provide accurate feedback from coworkers but may also contain outside influences; 360-degree reviews gather feedback from multiple roles but are time-consuming; performance ranking can discourage some employees and focus them on individual goals not company goals; management by objectives uses frequent reviews and clearly defined goals to motivate improvement; and rating scales add quantification but lack qualifications measures. No single method is best so utilizing a combination can provide more accurate results.